fix: bump tracing-subscriber from 0.3.19 to 0.3.20

Fixes Dependabot alert #2.

Author: jkaczman

camera_hub/Cargo.lock

@@ -32,7 +32,7 @@ http = "1.2.0"
 walkdir = "2.5.0"
 tokio = "1.43.0"
 tracing = "0.1.41"
-tracing-subscriber = "0.3.19"
+tracing-subscriber = "0.3.20"
 rocket = { version = "0.5.1", features = ["json"] } #todo: make this feature based
 video-rs= { version = "0.10.3", features = ["ndarray"], optional = true }
 crossbeam-channel = "0.5.14"